US6100829A - Method and apparatus for a digital peak detection system including a countdown timer - Google Patents
Method and apparatus for a digital peak detection system including a countdown timer Download PDFInfo
- Publication number
- US6100829A US6100829A US08/954,167 US95416797A US6100829A US 6100829 A US6100829 A US 6100829A US 95416797 A US95416797 A US 95416797A US 6100829 A US6100829 A US 6100829A
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- United States
- Prior art keywords
- output terminal
- gate
- coupled
- input terminal
- digital
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 12
- 238000005070 sampling Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000013500 data storage Methods 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000001934 delay Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 description 13
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- 229920006395 saturated elastomer Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
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- 230000003247 decreasing effect Effects 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
- G11B5/59605—Circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
- G11B5/59688—Servo signal format patterns or signal processing thereof, e.g. dual, tri, quad, burst signal patterns
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
- G11B5/59683—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks for magnetoresistive heads
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
Abstract
Description
|s.sub.i |>|s.sub.i-j | for j=1, . . . , N
|s.sub.i |≧|s.sub.i+j | for j=1, . . . , N
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/954,167 US6100829A (en) | 1997-10-20 | 1997-10-20 | Method and apparatus for a digital peak detection system including a countdown timer |
US09/281,606 US6195028B1 (en) | 1997-10-20 | 1999-03-30 | Amplifier gain control method using conditional updating |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/954,167 US6100829A (en) | 1997-10-20 | 1997-10-20 | Method and apparatus for a digital peak detection system including a countdown timer |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/281,606 Division US6195028B1 (en) | 1997-10-20 | 1999-03-30 | Amplifier gain control method using conditional updating |
Publications (1)
Publication Number | Publication Date |
---|---|
US6100829A true US6100829A (en) | 2000-08-08 |
Family
ID=25495029
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/954,167 Expired - Fee Related US6100829A (en) | 1997-10-20 | 1997-10-20 | Method and apparatus for a digital peak detection system including a countdown timer |
US09/281,606 Expired - Fee Related US6195028B1 (en) | 1997-10-20 | 1999-03-30 | Amplifier gain control method using conditional updating |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/281,606 Expired - Fee Related US6195028B1 (en) | 1997-10-20 | 1999-03-30 | Amplifier gain control method using conditional updating |
Country Status (1)
Country | Link |
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US (2) | US6100829A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6205103B1 (en) * | 1998-06-30 | 2001-03-20 | Plasmon Lms, Inc. | Enhanced adaptive and selective ISI cancellation for a read channel in storage technologies |
WO2001028101A1 (en) * | 1999-10-08 | 2001-04-19 | Packard Bioscience Company | Digital peak detector with noise threshold and method |
US6501607B2 (en) | 2001-01-10 | 2002-12-31 | Texas Instruments Incorporated | Channel quality monitor (CQM) for digital peak detection (DPD) |
US6535033B2 (en) | 2000-12-07 | 2003-03-18 | Texas Instruments Incorporated | Peak hold circuit |
US20040176919A1 (en) * | 2001-12-31 | 2004-09-09 | Bae Systems Information And Electronic Systems Integration Inc. | Methods and apparatuses for peak detection among multiple signals |
US20040230383A1 (en) * | 2003-05-12 | 2004-11-18 | Bechhoefer Eric Robert | Wire fault detection |
US20040252398A1 (en) * | 2003-06-11 | 2004-12-16 | Seagate Technology Llc | Method and apparatus for tuning a magnetoresistive bias parameter in a data storage system |
US20050046987A1 (en) * | 2003-08-28 | 2005-03-03 | Quantum Corporation | Correlation receiver for demodulating servo track information |
WO2006046016A2 (en) * | 2004-10-25 | 2006-05-04 | Arjo Wiggins Limited | Method for reading magnetic data |
US20060098750A1 (en) * | 2004-11-05 | 2006-05-11 | Sergey Zhidkov | Circuit and method for reducing impulse noise |
US7123176B1 (en) * | 1999-10-08 | 2006-10-17 | Canberra Industries, Inc. | Digital peak detector with noise threshold and method |
US20070115581A1 (en) * | 2005-11-22 | 2007-05-24 | Bui Nhan X | Peak detection for magnetic tape timing based servo |
US7540051B2 (en) | 2004-08-20 | 2009-06-02 | Spatial Systems, Inc. | Mapping web sites based on significance of contact and category |
US20130006644A1 (en) * | 2011-06-30 | 2013-01-03 | Zte Corporation | Method and device for spectral band replication, and method and system for audio decoding |
US10352946B2 (en) | 2012-02-22 | 2019-07-16 | Church & Dwight Co., Inc. | Test kits for electronic analyte assaying |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6947077B1 (en) * | 1998-03-30 | 2005-09-20 | Micron Technology, Inc. | Fast and accurate adjustment of gain and exposure time for image sensors |
US6987851B1 (en) | 2000-09-22 | 2006-01-17 | Ikanos Communication, Inc | Method and apparatus for a high efficiency line driver |
US6766153B2 (en) | 2001-04-02 | 2004-07-20 | Itran Communications Ltd. | Dynamic automatic gain control circuit employing kalman filtering |
US7215494B2 (en) * | 2002-04-26 | 2007-05-08 | Seagate Technology Llc | System and method for performing adaptive read retry operations in a data storage device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5050016A (en) * | 1989-10-12 | 1991-09-17 | Conner Peripherals, Inc. | Disk drive servo system using gain limited high-frequency track-following compensator |
US5388011A (en) * | 1992-05-20 | 1995-02-07 | Wangtek, Inc. | Peak detector with look ahead |
US5508855A (en) * | 1993-09-30 | 1996-04-16 | International Business Machines Corporation | Tracking threshold circuit for peak detection |
US5600615A (en) * | 1993-11-04 | 1997-02-04 | Pioneer Electronic Corporation | Device and method for automatically controlling a servo loop gain |
US5638403A (en) * | 1995-04-28 | 1997-06-10 | Motorola, Inc. | Low-splatter peak-to-average signal reduction with interpolation |
US5668678A (en) * | 1994-11-14 | 1997-09-16 | Cirrus Logic, Inc. | Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969683A (en) * | 1975-04-21 | 1976-07-13 | Bell Telephone Laboratories, Incorporated | Automatic level control circuit |
US4066977A (en) * | 1976-03-30 | 1978-01-03 | E-Systems, Inc. | Digitized AGC amplifier with gain hysteresis circuit |
US5121262A (en) * | 1989-10-12 | 1992-06-09 | Conner Peripherals, Inc. | Disk drive system employing adaptive read/write channel controls and method of using same |
US5680075A (en) * | 1995-05-31 | 1997-10-21 | Casio Phonemate, Inc. | Digital automatic gain control |
-
1997
- 1997-10-20 US US08/954,167 patent/US6100829A/en not_active Expired - Fee Related
-
1999
- 1999-03-30 US US09/281,606 patent/US6195028B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5050016A (en) * | 1989-10-12 | 1991-09-17 | Conner Peripherals, Inc. | Disk drive servo system using gain limited high-frequency track-following compensator |
US5388011A (en) * | 1992-05-20 | 1995-02-07 | Wangtek, Inc. | Peak detector with look ahead |
US5508855A (en) * | 1993-09-30 | 1996-04-16 | International Business Machines Corporation | Tracking threshold circuit for peak detection |
US5600615A (en) * | 1993-11-04 | 1997-02-04 | Pioneer Electronic Corporation | Device and method for automatically controlling a servo loop gain |
US5668678A (en) * | 1994-11-14 | 1997-09-16 | Cirrus Logic, Inc. | Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel |
US5668678B1 (en) * | 1994-11-14 | 2000-11-28 | Cirrus Logic Inc | Detecting servo data and servo bursts from discrete time samples of an analog read signal in a sampled amplitude read channel |
US5638403A (en) * | 1995-04-28 | 1997-06-10 | Motorola, Inc. | Low-splatter peak-to-average signal reduction with interpolation |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6407970B2 (en) | 1998-06-30 | 2002-06-18 | Plasmon Lms, Inc. | Enhanced adaptive and selective ISI cancellation for a read channel in storage technologies |
US6205103B1 (en) * | 1998-06-30 | 2001-03-20 | Plasmon Lms, Inc. | Enhanced adaptive and selective ISI cancellation for a read channel in storage technologies |
WO2001028101A1 (en) * | 1999-10-08 | 2001-04-19 | Packard Bioscience Company | Digital peak detector with noise threshold and method |
US7123176B1 (en) * | 1999-10-08 | 2006-10-17 | Canberra Industries, Inc. | Digital peak detector with noise threshold and method |
US6535033B2 (en) | 2000-12-07 | 2003-03-18 | Texas Instruments Incorporated | Peak hold circuit |
US6501607B2 (en) | 2001-01-10 | 2002-12-31 | Texas Instruments Incorporated | Channel quality monitor (CQM) for digital peak detection (DPD) |
US6870358B2 (en) * | 2001-12-31 | 2005-03-22 | Baes Systems Information And Electronic Systems Integration Inc. | Methods and apparatuses for peak detection among multiple signals |
US20040176919A1 (en) * | 2001-12-31 | 2004-09-09 | Bae Systems Information And Electronic Systems Integration Inc. | Methods and apparatuses for peak detection among multiple signals |
US20050174826A1 (en) * | 2001-12-31 | 2005-08-11 | Bae Systems Information And Electronic Systems Integration Inc. | Methods and apparatuses for peak detection among multiple signals |
US20040230383A1 (en) * | 2003-05-12 | 2004-11-18 | Bechhoefer Eric Robert | Wire fault detection |
US7512503B2 (en) * | 2003-05-12 | 2009-03-31 | Simmonds Precision Products, Inc. | Wire fault detection |
US20040230385A1 (en) * | 2003-05-12 | 2004-11-18 | Bechhoefer Eric Robert | Wire fault detection |
US7120563B2 (en) * | 2003-05-12 | 2006-10-10 | Simmonds Precision Products, Inc. | Wire fault detection |
US20040252398A1 (en) * | 2003-06-11 | 2004-12-16 | Seagate Technology Llc | Method and apparatus for tuning a magnetoresistive bias parameter in a data storage system |
US6903889B2 (en) | 2003-06-11 | 2005-06-07 | Seagate Technology | Method and apparatus for tuning a magnetoresistive bias parameter in a data storage system |
US7230782B2 (en) | 2003-08-28 | 2007-06-12 | Quantum Corporation | Correlation receiver for demodulating servo track information |
EP1517305A1 (en) * | 2003-08-28 | 2005-03-23 | Quantum Corporation | Correlation receiver for demodulating servo track information |
US20050046987A1 (en) * | 2003-08-28 | 2005-03-03 | Quantum Corporation | Correlation receiver for demodulating servo track information |
US7540051B2 (en) | 2004-08-20 | 2009-06-02 | Spatial Systems, Inc. | Mapping web sites based on significance of contact and category |
US20090046393A1 (en) * | 2004-10-25 | 2009-02-19 | Paul James Davey | Method for reading magnetic data |
WO2006046016A2 (en) * | 2004-10-25 | 2006-05-04 | Arjo Wiggins Limited | Method for reading magnetic data |
WO2006046016A3 (en) * | 2004-10-25 | 2006-07-06 | Arjo Wiggins Ltd | Method for reading magnetic data |
FR2879872A1 (en) * | 2004-11-05 | 2006-06-23 | Samsung Electronics Co Ltd | CIRCUIT AND METHOD FOR REDUCING IMPULSE NOISE |
US20060098750A1 (en) * | 2004-11-05 | 2006-05-11 | Sergey Zhidkov | Circuit and method for reducing impulse noise |
US20070115581A1 (en) * | 2005-11-22 | 2007-05-24 | Bui Nhan X | Peak detection for magnetic tape timing based servo |
US7369342B2 (en) | 2005-11-22 | 2008-05-06 | International Business Machines Corporation | Peak detection for magnetic tape timing based servo |
US20080158721A1 (en) * | 2005-11-22 | 2008-07-03 | Nhan Xuan Bui | Peak detection for magnetic tape timing based servo |
US7443623B2 (en) | 2005-11-22 | 2008-10-28 | International Business Machines Corporation | Peak detection for magnetic tape timing based servo |
US20130006644A1 (en) * | 2011-06-30 | 2013-01-03 | Zte Corporation | Method and device for spectral band replication, and method and system for audio decoding |
US10352946B2 (en) | 2012-02-22 | 2019-07-16 | Church & Dwight Co., Inc. | Test kits for electronic analyte assaying |
Also Published As
Publication number | Publication date |
---|---|
US6195028B1 (en) | 2001-02-27 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: SEAGATE TECHNOLOGY, INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FREDRICKSON, LISA;STONE, DENNIS C.;VOLZ, LEROY;REEL/FRAME:009032/0523 Effective date: 19980130 |
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AS | Assignment |
Owner name: SEAGATE TECHNOLOGY LLC, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SEAGATE TECHNOLOGY, INC.;REEL/FRAME:010980/0949 Effective date: 20000628 |
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Owner name: JPMORGAN CHASE BANK, AS COLLATERAL AGENT, NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNOR:SEAGATE TECHNOLOGY LLC;REEL/FRAME:013177/0001 Effective date: 20020513 Owner name: JPMORGAN CHASE BANK, AS COLLATERAL AGENT,NEW YORK Free format text: SECURITY AGREEMENT;ASSIGNOR:SEAGATE TECHNOLOGY LLC;REEL/FRAME:013177/0001 Effective date: 20020513 |
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REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
FP | Expired due to failure to pay maintenance fee |
Effective date: 20040808 |
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Owner name: SEAGATE TECHNOLOGY LLC, CALIFORNIA Free format text: RELEASE OF SECURITY INTERESTS IN PATENT RIGHTS;ASSIGNOR:JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT (FORMERLY KNOWN AS THE CHASE MANHATTAN BANK);REEL/FRAME:016945/0763 Effective date: 20051130 |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |